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(No Model.)

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Mechanism for Operating Doffer Combs of Oarding Machines.

No. 243,650. Patented June 28,1881.

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- 27161 2" HASi ne n, PETERS, mmmw m mp UNITED STATES PATENT OFFICE;

HARLEY STONE AND HARLEY A. STONE, OF WORCESTER, MASSACHUSETTS, ASSIGNORS .OF ONE-THIRD TO MYRON A. EARLE, OF SAME PLACE.

MECHANISM FQR OPERATING DOFFER-COMBS 0F CARDlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 243,650, dated June 28, 1881.

Application filed October 15, 1880. (No model.)

To all whom it may concern Be it known that we, HARLEY STONE and HARLEY A. STONE, citizens of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Mechanism for Operating the Dolfer-Oombs of Oarding-Machines; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Our invention relates to an improved means for giving the vibratory motion to the doffercomb of a carding-machine; and the invention consists, essentially, of a double lever, one arm whereof is pivoted and the other fixed immovably to a hollow hub which receives the end of the comb-shaft, the lower ends of both arms being provided with friction -rollers, adapted to be operated by a cam upon the drivingshaft, and whereby a vibratory motion is imparted to the comb.

It also consists in the construction and arrangement of the said lever and its drivingcam at the center of the stand which supports and carries the comb-shaft, whereby the weight of said shaft and comb is balanced, all as will be hereinaftermorefully described,and pointed out in the claims.

Figure 1 is an end view of the devices embodying our invention, showing also the comb and the arm carrying the same, part of the latter being broken away. Fig. 2 is a side view of the invention in operative connection with the comb-shaft and other parts immediately connected therewith, the stand or frame being shown in section.

Similar letters of reference indicate like parts in both figures.

Referring to the drawings, D represents the stand or frame which supports and carries the several parts.

F represents a hollow hub adjusted in said frame, and adapted to receive one end of the comb-shaft G, which is adjusted therein by double lever E, composed of two arms, one of which is fixed immovably to the said hub and provided with a friction-roller, e, at its lower end, while the other arm is pivoted to said hub, as shown at L, and adapted to be adjusted by the set-screw K, so as to increase or diminish the stroke of the lever-arms to regulate the motion of the dofier-comb A, said arm being also provided with a friction-roller, e, at its lower end. 4

G represents a cam fitting between the rollers e e of the lever E, and which is connected to the driving-shaft H, journaled in the lower part of the stand D, said cam being provided with one or more swells, so arranged that when one swell is under one roller a depres' sion is at the other roller, and vice versa.

M represents a spiral spring on the shaft 0,

which is held in place at one end to the collar N, adjusted upon said shaft by set-screw a, and at the other end to the frame or stand D, as fully shown in Fig. 2, whereby the weight of the comb A and its arm is counteracted and made capable of a smooth easy motion.

' The construction of our invention being as described, it will be observed that in the operation of the same the cam G is revolved by the driving-shaft H, thereby operating the arms of the lever E on the shaft (J, whereby a vibratory motion is imparted to the comb A, the length of its stroke being regulated by the set-screw K on the pivoted arm of the said lever E.

Having thus described our invention, what we claim as new and useful is-- 1. The combination, with the frame D, combshaft 0, hollow hub F, and set-screw K, of the double lever E, having two arms, one of which is pivoted and the other fixed immovably to the said hub F, which is connected to the shaft (J by set-screw c, said arms being pro= vided with friction-rollers e e, which engage 3. The adjustable screw K and pivot L, in combination with the double lever E and hollow hub F, substantially as specified.

HARLEY STONE. HARLEY A. STONE.

Witnesses:

JOHN RYAN, J. G. ARNOLD. 

